From fabe44293e5f5f343176ea770a45fff312f82bfe Mon Sep 17 00:00:00 2001
From: Matthias <xmatthias@outlook.com>
Date: Mon, 10 Apr 2023 17:40:56 +0200
Subject: [PATCH] Add tests for timeformat "parseDate"

---
 src/shared/formatters/timeformat.ts |  6 ++++--
 tests/unit/timeformat.spec.ts       | 12 ++++++++++++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/shared/formatters/timeformat.ts b/src/shared/formatters/timeformat.ts
index d55bf008..f52d2362 100644
--- a/src/shared/formatters/timeformat.ts
+++ b/src/shared/formatters/timeformat.ts
@@ -1,10 +1,12 @@
 import { parse, toDate } from 'date-fns';
-import { format, utcToZonedTime } from 'date-fns-tz';
+import { format, utcToZonedTime, zonedTimeToUtc } from 'date-fns-tz';
 import humanizeDuration from 'humanize-duration';
 import { isUndefined } from './numberformat';
 
+/** Parse date from string, returns date in UTC! */
 export function dateFromString(datestring: string, format: string): Date {
-  return parse(datestring, format, 0);
+  const localTime = parse(datestring, format, 0);
+  return zonedTimeToUtc(localTime, 'UTC');
 }
 
 let locTimeZone = 'UTC';
diff --git a/tests/unit/timeformat.spec.ts b/tests/unit/timeformat.spec.ts
index 62d45188..6f266f93 100644
--- a/tests/unit/timeformat.spec.ts
+++ b/tests/unit/timeformat.spec.ts
@@ -6,6 +6,7 @@ import {
   timestampToDateString,
   dateStringToTimeRange,
   timestampHour,
+  dateFromString,
 } from '@/shared/formatters';
 
 const { getTimeZone } = exportForTesting;
@@ -58,4 +59,15 @@ describe('timeformatter.ts', () => {
     setTimezone('CET');
     expect(timestampHour(1651057500000)).toEqual(13);
   });
+  it('dateFromString converts correctly', () => {
+    expect(dateFromString('2022-04-04', 'yyyy-MM-dd')).toEqual(
+      new Date('2022-04-04T00:00:00.000Z'),
+    );
+    expect(dateFromString('2023-02-08', 'yyyy-MM-dd')).toEqual(
+      new Date('2023-02-08T00:00:00.000Z'),
+    );
+    expect(dateFromString('2022-12-31', 'yyyy-MM-dd')).toEqual(
+      new Date('2022-12-31T00:00:00.000Z'),
+    );
+  });
 });